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Commit cb34be6d authored by Achiad Shochat's avatar Achiad Shochat Committed by Doug Ledford
Browse files

IB/mlx5: Set network_hdr_type upon RoCE responder completion 



When handling a responder completion, if the link layer is Ethernet,
set the work completion network_hdr_type field according to CQE's
info and the IB_WC_WITH_NETWORK_HDR_TYPE flag.

Signed-off-by: default avatarAchiad Shochat <achiad@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 3f89a643

drivers/infiniband/hw/mlx5/cq.c

+17 −0
Original line number Diff line number Diff line
@@ -171,6 +171,7 @@ enum { 
static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe,

			     struct mlx5_ib_qp *qp)

{

	enum rdma_link_layer ll = rdma_port_get_link_layer(qp->ibqp.device, 1);

	struct mlx5_ib_dev *dev = to_mdev(qp->ibqp.device);

	struct mlx5_ib_srq *srq;

	struct mlx5_ib_wq *wq;
@@ -236,6 +237,22 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe, 
	} else {

		wc->pkey_index = 0;

	}



	if (ll != IB_LINK_LAYER_ETHERNET)

		return;



	switch (wc->sl & 0x3) {

	case MLX5_CQE_ROCE_L3_HEADER_TYPE_GRH:

		wc->network_hdr_type = RDMA_NETWORK_IB;

		break;

	case MLX5_CQE_ROCE_L3_HEADER_TYPE_IPV6:

		wc->network_hdr_type = RDMA_NETWORK_IPV6;

		break;

	case MLX5_CQE_ROCE_L3_HEADER_TYPE_IPV4:

		wc->network_hdr_type = RDMA_NETWORK_IPV4;

		break;

	}

	wc->wc_flags |= IB_WC_WITH_NETWORK_HDR_TYPE;

}



static void dump_cqe(struct mlx5_ib_dev *dev, struct mlx5_err_cqe *cqe)

include/linux/mlx5/device.h

+6 −0
Original line number Diff line number Diff line
@@ -628,6 +628,12 @@ enum { 
	CQE_RSS_HTYPE_L4	= 0x3 << 2,

};



enum {

	MLX5_CQE_ROCE_L3_HEADER_TYPE_GRH	= 0x0,

	MLX5_CQE_ROCE_L3_HEADER_TYPE_IPV6	= 0x1,

	MLX5_CQE_ROCE_L3_HEADER_TYPE_IPV4	= 0x2,

};



enum {

	CQE_L2_OK	= 1 << 0,

	CQE_L3_OK	= 1 << 1,